Lightweight, low-resistance and modularized oxygen generating respirator

Abstract

The utility model discloses a light-weight, low-resistance and modularized oxygen-generating respirator, which is used for solving the technical problem that an oxygen-generating respirator in the prior art cannot be reused, can prolong the service time, realize reuse and reduce waste through a replaceable oxygen-generating module structure, and belongs to the technical field of oxygen-generating respirators. The oxygen generating mask comprises a half mask body, the half mask body is connected with a connecting piece through an air guide pipe, and the connecting piece is detachably connected with an oxygen generating module.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of oxygen generator respirator, especially relates to a light weight low resistance, modular oxygen generator respirator. BACKGROUND

[0002] The existing oxygen generator respirator product is divided into four models according to the rated protection time, 15 type, 20 type, 25 type and 30 type. The utility model is designed according to the 30 type chemical oxygen fire-fighting self-rescue respirator. The existing 30 type chemical oxygen fire-fighting self-rescue respirator is not more than 1.8kg in weight, has 30 minutes of effective protection time, is scrapped after use and cannot be reused, so great waste is caused. The inhalation temperature is 55 DEG C, the exhalation resistance and the inhalation resistance are respectively not more than 1000Pa, the resistance is relatively large, and the physiological comfort is poor. CONTENT OF UTILITY MODEL

[0003] The utility model aims at providing a light weight low resistance, modular oxygen generator respirator, which is used to solve the technical problem that the oxygen generator respirator cannot be reused in the prior art, and can prolong the use time, realize reuse and reduce waste through the replaceable oxygen generator module structure.

[0004] The utility model is implemented by the following technical scheme:

[0005] A light weight low resistance, modular oxygen generator respirator, comprising a half face mask, the half face mask is connected with a connecting piece through an air guide pipe, and the connecting piece is connected with an oxygen generator module in a detachable mode.

[0006] When applied, the user wears the half face mask, the exhaled water vapor and carbon dioxide enter the oxygen generator module through the air guide pipe, when inhaling, oxygen enters the human body from the oxygen generator module through the air guide pipe, forming a respiratory cycle system. The oxygen generator respirator structure is reciprocating, and the advantage is that the airflow passes through the oxygen generator twice in one respiratory cycle system, so that the absorption of carbon dioxide is more thorough, after the protection time of the oxygen generator module, the half face mask is connected with another oxygen generator module, the protection time of the oxygen generator respirator is prolonged through the mode, reuse is realized, and the production cost of the oxygen generator respirator is reduced.

[0007] Further preferably, the oxygen generator module comprises an oxygen generator canister and an air bag fixedly connected with the oxygen generator canister, the oxygen generator canister is internally provided with an oxygen generator, and an exhaust valve is arranged on the air bag.

[0008] Further preferably, a threaded interface is arranged on the upper side of the oxygen generator canister, an air bag interface is arranged on the lower side, the air bag interface is fixedly connected with the air bag in the form of a clamp, the threaded interface is connected with the connecting piece, and the oxygen generator module and the connecting piece are detachably connected in the threaded connection mode.

[0009] Further preferably, the oxygen generator is a φ9 tablet-shaped oxygen generator, and the loading amount of the oxygen generator is 450g. The dosage form of the oxygen generator is powder, granules and tablets. If the oxygen generator is in powder form, the powder will enter the respiratory tract with the airflow when the human body breathes, increasing the respiratory resistance and being not conducive to first aid. If the oxygen generator is in granular form, compared with the tablet form, the gap between the granules is small, and melting is more likely to cause caking, increasing the respiratory resistance. Therefore, the φ9 tablet-shaped oxygen generator with high activity is used, and the loading amount is 450g.

[0010] Further preferably, the cross-sectional shape of the oxygen generator tank is a long rectangle with the long side outwardly protruding, and the abdominal part of the oxygen generator tank is designed as a spherical protrusion, so that the middle layer of the oxygen generator tank is thickened.

[0011] Further preferably, the oxygen generator tank is provided with a support plate group, the support plate group is provided as two layers, the two layers are separated by a mesh partition, each layer of the support plate group is in the shape of an X when viewed from above, the oxygen generator tank is divided by the support plate group and layered by the partition, and the partition can control the reaction speed, control the increase of the respiratory resistance and reduce the inhalation temperature by reasonable selection of the porosity.

[0012] Further preferably, the oxygen generator tank is provided with a mesh plate on the upper and lower sides, and the upper side of the upper mesh plate is provided with a filter layer.

[0013] Further preferably, the air guide pipe is provided with a cooling device.

[0014] The utility model discloses a chemical reaction of the water vapor and carbon dioxide exhaled by the wearer and the oxygen generator to generate oxygen for the wearer to breathe. Under the premise of meeting the technical index of protection performance, the oxygen generator respirator with light weight, low exhalation resistance and inhalation resistance, long effective protection time, low inhalation temperature and not affected by external factors is provided, and the technical level of the existing equipment is significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings incorporated into the specification and forming a part thereof show, in accordance with the embodiments of the present utility model, and together with the specification, serve to explain the principle of the present utility model.

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below, and obviously, other drawings can also be obtained by those skilled in the art without creative labor.

[0017] Figure 1 The structure of the present utility model is shown in the figure.

[0018] Figure 2 The schematic diagram of the oxygen generator tank is shown in the figure.

[0019] Figure 3 The second schematic diagram shows the oxygen-generating medicine tank.

[0020] In the diagram: 1-Half mask, 2-Air tube, 3-Connector, 4-Oxygen generator, 41-Threaded interface, 42-Airbag interface, 43-Mesh plate, 44-Filter layer, 45-Partition plate, 46-Support plate assembly, 5-Oxygen generator, 6-Airbag, 7-Exhaust valve. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the solution of this utility model will be further described below. It should be noted that, unless otherwise specified, the embodiments of this utility model and the features thereof can be combined with each other.

[0022] In this description, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. It should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joint" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the present invention, and not all embodiments.

[0024] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0025] A lightweight, low-resistance, modular oxygen-generating respirator includes a half-mask 1, which is connected to a connector 3 via an air duct 2. The connector 3 is detachably connected to an oxygen-generating module.

[0026] The oxygen generation module includes an oxygen generation tank 4 and an air bag 6 fixedly connected to the oxygen generation tank 4. The oxygen generation tank 4 is equipped with an oxygen generation agent 5, and the air bag 6 is equipped with an exhaust valve 7.

[0027] The oxygen-generating medicine tank 4 has a threaded interface 41 on the upper side and an airbag interface 42 on the lower side. The airbag interface 42 is fixedly connected to the airbag 6 by a clamp. The threaded interface 41 is connected to the connector 3.

[0028] The cross-sectional shape of the oxygen-generating medicine tank 4 is set as a rectangle with the long side bulging outward.

[0029] The oxygen-generating medicine tank 4 is provided with a bearing plate set 46, which is arranged in two layers, and the two layers are separated by a mesh partition 45.

[0030] The oxygen-generating medicine tank 4 is provided with mesh plates 43 on the upper and lower sides, and the upper side of the upper mesh plate 43 is provided with a filter layer 44.

[0031] The gas guide pipe 2 is provided with a cooling device.

[0032] A good oxygen-generating agent 5 should have a small fluctuation in oxygen concentration during use, fast oxygen generation in the initial stage, moderate oxygen generation in the middle stage, and slow oxygen concentration decrease in the later stage. Such an oxygen-generating agent 5 has a long protection time, less oxygen waste, and high utilization rate. The utility model adopts a high-activity φ9 sheet-shaped oxygen-generating agent 5 with a filling amount of 450 g, which can protect the human respiratory system from damage and reduce the respiratory resistance and inhalation temperature.

[0033] In order to prevent the exhalation from directly penetrating through the hollows and collapses to cause CO2 exceeding the standard, the oxygen-generating medicine tank 4 is designed to have spherical protrusions at both ends, the middle layer of the oxygen-generating medicine tank 4 is thickened, and the upper and lower mesh plates 43 are beneficial to the reasonable distribution of the exhalation airflow, so that the oxygen-generating agent 5 is uniformly reacted and fully utilized, there is no dead angle, CO2 and water vapor are fully absorbed, and the oxygen release rate and utilization rate are improved.

[0034] The oxygen-generating medicine tank 4 is provided with a built-in skeleton, which is designed in a partitioned and layered manner, the porosity is reasonably selected, the reaction speed is controlled, the respiratory resistance rise is controlled, and the inhalation temperature is reduced. The replaceable oxygen-generating module can prolong the effective protection time, be repeatedly used, and reduce waste; the replaceable oxygen-generating module can be repeatedly used, the use time is prolonged, the production cost is reduced, and the purpose of reducing waste is achieved. The skeleton includes the upper and lower mesh plates 43, the mesh partition 45, and the bearing plate set 46.

[0035] Working principle:

[0036] In order to uniformly absorb CO2 and improve the reaction rate of the oxygen-generating agent 5, the utility model adopts a reciprocating structure. After a user wears the half mask 1, the exhaled water vapor and CO2 enter the oxygen-generating medicine tank 4 through the gas guide pipe 2, chemically react with the oxygen-generating agent 5 to generate oxygen, and enter the air bag 6. When inhaling, the oxygen enters the human body from the air bag 6 through the oxygen-generating medicine tank 4 and the gas guide pipe 2, and a respiratory circulation system is formed.

[0037] The structure of the oxygen-generating respirator is reciprocating, and the advantages are as follows: the airflow passes through the oxygen-generating agent 5 twice in one respiratory circulation system, the absorption of CO2 is more complete, the distribution of water vapor is more uniform, the respiratory resistance rise is slower, the oxygen is uniformly released, the utilization rate of oxygen is increased, the design scheme has small size, light weight, rapid oxygen production, and makes the breathing more smooth.

[0038] The existing oxygen generator respirator product is divided into four types according to the rated protection time, 15 type, 20 type, 25 type and 30 type. The utility model is designed according to the 30 type chemical oxygen consumption fire self-rescue respirator. The existing 30 type chemical oxygen consumption fire self-rescue respirator has a weight of not more than 1.8 kg, an effective protection time of 30 minutes, and is scrapped after use and cannot be reused, which is wasteful. The inhalation temperature is 55 DEG C, and the exhalation resistance and inhalation resistance are not more than 1000 Pa respectively, the resistance is large, and the physiological comfort is poor.

[0039] Compared with the existing oxygen generator respirator, the equipment weight is 1.4 kg, the breathing mode adopts a reciprocating structure, the oxygen generator medicine tank adopts a cuboid cylindrical structure, and the built-in framework improves the oxygen utilization rate and the oxygen generator utilization rate, improves the oxygen generation capacity, reduces the oxygen generator loading amount, reduces the production cost, reduces the product quality, and reduces the volume. The zoned design controls the reaction speed, reduces the exhalation resistance and inhalation resistance, and reduces the inhalation temperature. The replaceable module design prolongs the effective protection time, is reusable, reduces the production cost, and reduces the waste. The equipment generalization and light weight are realized, and the existing equipment technical level is significantly improved.

[0040] Before wearing and using the respirator, two breaths are blown towards the half mask outlet position, then the respirator is worn, and the respirator is normally used. The test results of the embodiment are as follows:

[0041]

[0042] The above only describes the specific embodiments of the utility model, so that those skilled in the art can understand or implement the utility model. Although the foregoing embodiments are described in detail, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some or all of the technical features can be replaced equivalently, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments, and they should be covered in the protection scope of the claims.

Claims

1. A lightweight, low resistance, modular, oxygen-generating respirator, characterized by: Including half face guard (1), the half face guard (1) is connected with connecting piece (3) through air pipe (2), the connecting piece (3) is connected with oxygen generation module in a detachable manner.

2. A lightweight, low resistance, modular oxygen-generating respirator according to claim 1, characterized in that: The oxygen generation module includes an oxygen generation tank (4) and an air bag (6) fixedly connected with the oxygen generation tank (4), the oxygen generation tank (4) is internally provided with an oxygen generation agent (5), and the air bag (6) is provided with an exhaust valve (7).

3. A lightweight, low resistance, modular oxygen-generating respirator according to claim 2, wherein: The oxygen generation tank (4) is provided with a threaded interface (41) on the upper side and an air bag interface (42) on the lower side, the air bag interface (42) is fixedly connected with the air bag (6) in the form of a clamp, and the threaded interface (41) is connected with the connecting piece (3).

4. A lightweight, low resistance, modular oxygen-generating respirator according to claim 2, wherein: The oxygen generation agent (5) adopts a φ9 sheet-shaped oxygen generation agent (5), and the filling amount of the oxygen generation agent (5) is 450g.

5. A lightweight, low resistance, modular oxygen-generating respirator according to claim 2, wherein: The oxygen generation tank (4) is provided in a cross-sectional shape of a rectangle with the long side outwardly protruding.

6. A lightweight, low resistance, modular oxygen-generating respirator according to claim 5, wherein: The oxygen generation tank (4) is internally provided with a support plate group (46), the support plate group (46) is provided in two layers, the two layers are separated by a mesh partition (45), and each layer of the support plate group (46) appears in an X shape when viewed from above.

7. A lightweight, low resistance, modular oxygen-generating respirator according to claim 6, wherein: The oxygen generation tank (4) is internally provided with a mesh plate (43) on the upper side and the lower side, and the mesh plate (43) on the upper side is provided with a filter layer (44) above.

8. A lightweight, low resistance, modular oxygen-generating respirator according to any one of claims 1 to 7, characterized in that: The air pipe (2) is internally provided with a cooling device.

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